Grade 8 Dot Plot Worksheet

Grade 8 Dot Plot Worksheet

Read each question carefully and answer to the best of your ability. Show your work where necessary.

A dot plot, also known as a dot chart, is a statistical chart consisting of data points plotted on a simple scale. Dot plots are used for small to moderate sized data sets and are useful for highlighting clusters, gaps, and outliers in data.

1. The following data represents the number of hours students spent studying for a math test: 2, 3, 1, 4, 2, 5, 3, 2, 1, 3, 4, 2. Create a dot plot for this data.

The dot plot below shows the number of siblings each student in a class has.

2. How many students have exactly 2 siblings?

Using the dot plot from question 2, answer the following:

3. The mean number of siblings is  .

4. The median number of siblings is  .

5. The mode number of siblings is  .

6. The range of the number of siblings is  .

7. Describe the shape of the distribution of the data in the dot plot from question 2 (e.g., symmetric, skewed left, skewed right). Explain your reasoning.

8. A dot plot is best suited for displaying data with a very large number of data points.